B&R 2BM100.9模擬輸入量模塊
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品牌：B&R
型號說明：B&R 2BM100.9模擬輸入量模塊
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B&R 2BM100.9以下是一個(gè)例程的示例，該例程構(gòu)建了一個(gè)單獨(dú)的向量表，然后將VBR移動到該表：結(jié)果可能是您的程序使用了調(diào)試器操作所需的一個(gè)或多個(gè)異常向量。B&R 2BM100.9但是，如果異常處理程序可以確定何時(shí)處理異常本身以及何時(shí)將異常傳遞給調(diào)試器，則仍然可以使用調(diào)試器工具。發(fā)生要傳遞給調(diào)試器的異常時(shí)；即ABORT，異常處理程序必須從異常堆棧幀的格式字讀取向量偏移量。此偏移量被添加到162Bug目標(biāo)程序向量表（您的程序保存了該表）的地址，從而產(chǎn)生B&R 2BM100.9異常向量的地址。然后，程序跳轉(zhuǎn)到此向量位置存儲的地址，即162Bug異常處理程序的地址B&R 2BM100.9
The following is an example of a routine which builds a separate vector table and then moves the VBR to point at it:B&R 2BM100.9It may turn out that your program uses one or more of the exception vectors that are required for debugger operation. Debugger facilities may still be used, however, if your exception handler can determine when to handle the exception itself and when to pass the exception to the debugger. When an exception occurs which you want to pass on to the debugger; i.e., ABORT, your exception handler must read the vector offset from the format word of the exception stack frame. This offset is added to the address of the 162Bug target program vector table (which your program saved), yielding the address of the B&R 2BM100.9 exception vector. The program then jumps to the address stored at this vector location, which is the address of the 162Bug exception handlerB&R 2BM100.9
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